In his police interviews, Williams claimed he had lost control of his van when he swerved to avoid a dog or fox which ran out in front of him.

But, giving evidence, Williams said after viewing the police CCTV footage, he remembered that he had lost control because he was trying to avoid a dark-coloured hatchback car which was trying to under take him on the inside lane.

Despite extensive police appeals, including being featured on BBC Crimewatch Roadshow, that car has never been traced.

Williams said he was so “shocked and traumatised” after the crash, he didn’t stay and go and help Mr Foster or give police his details, but instead got on a bus, went into Birmingham city centre and walked around despite being injured himself in the crash.